project_a: a
tmpl_c1: '[% c("project_a") %]'
tmpl_pc1: '[% pc("b", "option_a") %]'
targets:
  target_b:
    option_a: b
  target_c:
    option_a: c

steps:
  S:
    z: A
    option_a: 12345
z: '[% c("option_a") %]'
z_1: '[% c("z") %]'
z_2: '[% c("z", { option_a => "Z" }) %]'
Z_1: '[% c("z_1") _ c("z_2") _ c("z_1") %]'
Z_2: '[% pc("a", "z_1", { step => "S"}) _ c("z_2") _ c("z_1") %]'
Z: '[% c("Z_1") _ " " _ c("Z_2") _ " " _ c("Z_1") %]'
